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questionedithistorytranslations
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flag English language

What element is named after the latin word for rainbow?
gold
fluorine
chrome
iridium
Iridium was discovered in 1803 among insoluble impurities in natural platinum. Smithson Tennant, the primary discoverer, named iridium for the Greek goddess Iris, personification of the rainbow, because of the striking and diverse colors of its salts. Iridium is one of the rarest elements in Earth's crust, with annual production and consumption of only three tonnes.
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wikipedia → Iridium
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flag Polish language

Nazwa którego pierwiastka pochodzi od tęczy?
złoto
fluor
chrom
iryd
Iryd (Ir, łac. iridium) to pierwiastek chemiczny, metal przejściowy. Odkryty w 1803 r. przez Smithsona Tennanta. Nazwa pochodzi od łacińskiego słowa iris oznaczającego tęczę oraz grecką boginię tęczy, posłankę bogów. Iryd Jest metalem szlachetnym, jednym z najmniej reaktywnych pierwiastków chemicznych. Nie roztwarza go nawet tzw. woda królewska, która rozpuszcza takie szlachetne metale jak platyna czy złoto.
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